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New Study From WARC and iHeartMedia Reveals Major Audio Investment Gap for Marketers

·5-min read

Consumers spend 31% of their media time with audio, yet brands only allocate 8.8% of their media budget on audio, with 25% of brands missing from audio entirely

LONDON & NEW YORK, September 21, 2021--(BUSINESS WIRE)--WARC, the global authority on marketing intelligence, unveiled today the results of a study conducted in collaboration with iHeartMedia, the leading audio media company in America (NASDAQ: IHRT), on media consumption and audio investment in the US.

"The Investment Gap: Understanding the Value of Audio" highlights a divergence between consumption and investment. While 31% of the average consumer’s media consumption is now audio, only 8.8% of the average media budget is allocated to audio, and 25% of advertisers do not invest in audio at all.

According to the study, consumers of every generation are spending more and more time with audio content across radio, streaming and podcasts driven by audio’s ease and accessibility with the growth of wireless headphones and smart speakers adding to in-car, at home and at work listening.

Whilst WARC Data forecasts audio advertising spend in the US to reach $13.9bn this year, a double-digit recovery (+10.9%) from the pandemic’s 2020 cuts, the report highlights a large audio investment gap and the vast opportunity that exists in this mass reach and high engagement audio advertising market.

The study also identified four key types of advertiser attitudes towards audio:

  • Audio Avoiders, the 25% of advertisers who do not invest in audio at all

  • Broadcast Believers, who have seen the benefits of radio and are beginning to delve into more forms of audio

  • Digital Only, those who have started to invest but are missing out on the full suite of audio options, particularly the 90% reach of broadcast radio

  • Cross-Platform Champions, who explore audio’s full potential and continue to test, learn from and optimize their investments across platforms.

Furthermore, the study shows that audio is not a monolith. There are different and critical channels within the audio segment, and they play different roles in the minds of the consumers that advertisers should take advantage of.

Broadcast radio reaches 9 out of 10 Americans every month1 and is also the number one mass reach media among people ages 18 and over2. Podcasts are the fastest growing new audio platform and consistently deliver higher advertising conversion rates than all other digital channels, including social media platforms like Facebook, Twitter, TikTok, and even Google.3Forecasts from IAB/PwC show podcast ad spend is expected to grow rapidly in the US this year, up 60% to top $1bn for the first time.

The study also highlights the effectiveness of audio advertising at a local, regional and national level and across every stage of the funnel:

  • Increases brand awareness: Audio delivers wide reach and high frequency. Nielsen Share Shift data shows that adding audio to a TV campaign improves performance by 20% whilst reducing costs.

  • Creates favorability: Audience members have close relationships with their preferred stations and platforms, audio boosts brand familiarity and consideration.

  • Sparks conversion: By delivering urgent calls-to-action at the most relevant times and places, audio motivates the actions and interactions brands require.

Whether brands tap into broadcast radio for its mass reach or its effectiveness or dive deeper into podcasting for its highest conversion rates, the study points out how right sizing the audio investment will drive real impact and growth for brands.

Gayle Troberman, Chief Marketing Officer, iHeartMedia, said: "The Audio Investment Gap is the single-biggest growth opportunity for brands. With the growth of wireless headphones and smart speakers paired with in-car listening, audio is everywhere and consumers are listening in more places, more times throughout the day. But too many brands are on mute. Brands that right-size their audio investments and begin spending and innovating across radio, streaming and podcasts outpace competitors in finding new audiences, building brand affinity and driving sales."

Paul Coxhill, Managing Director, WARC, commented: "The changing role of Audio has been a relatively under-researched area of the Marketing Media Mix. This study, with iHeartMedia, starts to address that. The study investigates whether there’s a disjoint between consumer consumption and media allocation of audio as a channel. The findings are fascinating and demonstrate a real opportunity for brands to expand their brand reach and, if done well, their share of consumer attention by expanding the role of Audio in their media mix."

"The Investment Gap: Understanding the Value of Audio" study was conducted by WARC for iHeartMedia in September 2021 following an analysis of data from WARC’s proprietary knowledge base and research and in consultation with our experts. .

The findings included in the report were presented at the recent online event, AudioCon. The full report, available to download here, includes chapter analysis on audio investment, audio as an effective communications channel, future audio trends, the benefits to brands investing in audio and case studies.

About WARC – The global authority on marketing effectiveness

WARC is part of Ascential: the path-to-purchase company that combines intelligence, data and insights to drive growth in the digital economy. We do this by delivering an integrated set of business-critical products in the key areas of product design, marketing and sales.

For over 30 years WARC has been powering the marketing segment by providing rigorous and unbiased evidence, expertise and guidance to make marketers more effective. WARC services include 94,000+ case studies, best practice guides, research papers, special reports, advertising trend data, webinars, awards, events and advisory services; has 1,400+ client companies, 21,500+ active users in 100+ countries; collaborates with 50+ industry partners; has offices in London, New York, Singapore and Shanghai.

About iHeartMedia

iHeartMedia, Inc. [Nasdaq: IHRT] is the leading audio media company in America, reaching over 250 million people each month. It is number one in both broadcast and digital streaming radio as well as podcasting and audio ad tech, and includes three business segments: The iHeartMedia Multiplatform Group; the iHeartMedia Digital Audio Group; and the Audio and Media Services Group. Visit for more company information.

1 Nielsen Audio, Spring 2021
2 Nielsen Total Audience Report, 1Q20 Based on Radio; Live + Time-Shifted TV; App/Web on Smartphone; Internet on a Computer; App/Web on Tablet
3 Adstage Q1 2020 Benchmark Report; Podsights Q3 Benchmark Report Nielsen ROAS- Nielsen Catalina report

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For further information, please contact:
Amanda Benfell
Head of PR & Press, WARC
+44 (0) 20 7467 8125

Jenn Powers
VP Communications, iHeartMedia

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